Climate and monthly weather forecastWeallup Lake, WA
Climate and monthly weather forecast
Weather in January
January in Weallup Lake, Washington, is a chilly winter month, with an average temperature ranging between max 44.1°F (6.7°C) and min 35.8°F (2.1°C). On the advent of January, Weallup Lake's average high-temperature exhibits a minor adjustment to a frosty 44.1°F (6.7°C) from December's 42.3°F (5.7°C). Weather in January »Weather in February
February, the last month of the winter in Weallup Lake, is another chilly month, with an average temperature fluctuating between 35.2°F (1.8°C) and 44.8°F (7.1°C). As Weallup Lake steps into February, the average high-temperature is measured at a still chilly 44.8°F (7.1°C), displaying minor differences from January's 44.1°F (6.7°C). Weather in February »Weather in March
The first month of the spring, March, is still a chilly month in Weallup Lake, Washington, with an average temperature fluctuating between 37°F (2.8°C) and 48.9°F (9.4°C). As February transitions into March, the average high-temperature rests at a still frosty 48.9°F (9.4°C), maintaining a close resemblance to the previous month. Weather in March »Weather in April
April in Weallup Lake, Washington, is a fresh spring month, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 40.3°F (4.6°C). As April begins, there's a slight increase in the average high-temperature, moving from a frosty 48.9°F (9.4°C) in March to a cool 54.3°F (12.4°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Weallup Lake, Washington, with an average temperature fluctuating between 62.2°F (16.8°C) and 44.8°F (7.1°C). A gentle upsurge in temperatures occurs as April gives way to May, with average highs shifting from a fresh 54.3°F (12.4°C) to an enjoyable 62.2°F (16.8°C). Weather in May »Weather in June
June, the first month of the summer in Weallup Lake, is still a refreshing month, with temperature in the range of an average high of 66.2°F (19°C) and an average low of 47.7°F (8.7°C). As June takes hold, the average high-temperature is a still enjoyable 66.2°F (19°C), nearly mirroring that of the previous month. Weather in June »Weather in July
July in Weallup Lake, Washington, is an agreeable summer month, with an average temperature varying between 72.1°F (22.3°C) and 51.4°F (10.8°C). July introduces a marginal temperature uplift, with average high-temperatures adjusting from June's enjoyable 66.2°F (19°C) to an agreeable 72.1°F (22.3°C). Weather in July »Weather in August
August, the last month of the summer in Weallup Lake, is another pleasant month, with an average temperature fluctuating between 73°F (22.8°C) and 52.5°F (11.4°C). Weallup Lake notes the warmest temperatures in August, with a high average of 73°F (22.8°C) and a low of 52.5°F (11.4°C). Weather in August »Weather in September
The first month of the autumn, September, is also an enjoyable month in Weallup Lake, Washington, with an average temperature fluctuating between 67.1°F (19.5°C) and 50°F (10°C). A subtle change in temperatures is noted as August gives way to September, with average highs reducing from an agreeable 73°F (22.8°C) to an enjoyable 67.1°F (19.5°C). Weather in September »Weather in October
October, the same as September, in Weallup Lake, Washington, is another refreshing autumn month, with an average temperature ranging between max 57°F (13.9°C) and min 44.4°F (6.9°C). The onset of October introduces a moderate change in Weallup Lake's weather, with average high-temperatures falling from September's comfortable 67.1°F (19.5°C) to a still refreshing 57°F (13.9°C). Weather in October »Weather in November
November, the last month of the autumn in Weallup Lake, is another chilly month, with an average temperature fluctuating between 39.2°F (4°C) and 47.7°F (8.7°C). A change in temperatures is noted as October gives way to November, with average highs reducing from a moderate 57°F (13.9°C) to a frosty 47.7°F (8.7°C). Weather in November »Weather in December
December, the first month of the winter in Weallup Lake, is also a wintry month, with an average temperature fluctuating between 34.7°F (1.5°C) and 42.3°F (5.7°C). December, known for its average high temperature of 42.3°F (5.7°C) and an average low temperature of 34.7°F (1.5°C), is the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Weallup Lake, WA
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (42.3°F).
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure
Weallup Lake, WA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
30.02"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed
Weallup Lake, WA
- Average wind speed in January:
5.7mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.8mph - Average wind speed in April:
5mph - Average wind speed in May:
4.1mph - Average wind speed in June:
3.9mph
- Average wind speed in July:
3.6mph - Average wind speed in August:
3.5mph - Average wind speed in September:
4mph - Average wind speed in October:
4.8mph - Average wind speed in November:
5.8mph - Average wind speed in December:
5.4mph
The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity
Weallup Lake, WA
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (73%).
Average rainfall
Weallup Lake, WA
- Average rainfall in January:
3.94" - Average rainfall in February:
3.03" - Average rainfall in March:
3.11" - Average rainfall in April:
2.64" - Average rainfall in May:
1.81" - Average rainfall in June:
1.3"
- Average rainfall in July:
0.47" - Average rainfall in August:
0.51" - Average rainfall in September:
1.77" - Average rainfall in October:
3.11" - Average rainfall in November:
4.06" - Average rainfall in December:
3.82"
The wettest month (with the highest rainfall) is November (4.06").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days
Weallup Lake, WA
- Average rainfall days in January:
18.2 days - Average rainfall days in February:
16.7 days - Average rainfall days in March:
19.8 days - Average rainfall days in April:
18.3 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
7.3 days - Average rainfall days in August:
6.1 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
15.8 days - Average rainfall days in November:
19.7 days - Average rainfall days in December:
19.3 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).
Average snowfall
Weallup Lake, WA
The month with the highest snowfall is February (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Weallup Lake, WA
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
3.1 days - Average snowfall days in March:
1.6 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
1.5 days
The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Weallup Lake, WA
- Average daylight in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 36min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 24min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
4h and 24min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 48min - Average sunshine in May:
9h and 12min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 24min - Average sunshine in November:
4h and 30min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days
Weallup Lake, WA
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
8.6 days - Average sunshine days in March:
9.6 days - Average sunshine days in April:
9.2 days - Average sunshine days in May:
15.4 days - Average sunshine days in June:
15.2 days
- Average sunshine days in July:
21.5 days - Average sunshine days in August:
23.1 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
8.6 days - Average sunshine days in December:
10.1 days
The month with the most sunshine days is August (23.1 days).
The months with the least sunshine days are February and November (8.6 days).
Average UV index
Weallup Lake, WA
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Weallup Lake, WA
The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility
Weallup Lake, WA
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).





